This second edition contains updated references and new entries to the alphabetical reference guide.

    If the idea of a computer science book without computers upsets you, please close your eyes until you’ve finished reading the rest of this page.The truth is that computer science is not really about the computer. It is just a tool to help you see ideas more clearly. You can see the moon and stars without a telescope, smell the flowers without a fluoroscope, have fun without a funoscope, and be silly sans oscilloscope.You can also play with computer science without... you-know-what. Ideas are the real stuff of computer science. This book is about those ideas, and how to find them.

    One day, a man exhausts himself trying to chop down a giant kapok tree. While he sleeps, the forest’s residents, including a child from the Yanomamo tribe, whisper in his ear about the importance of trees and how "all living things depend on one another" . . . and it works. Cherry’s lovingly rendered colored pencil and watercolor drawings of all the "wondrous and rare animals" evoke the lush rain forests, as well as stunning world maps bordered by tree porcupines, emerald tree boas, and dozens more fascinating creatures.Awards: IRA Teacher’s Choice (1991), ABA’s Pick of the Lists, Reading Rainbow Review Book, NSTA-CBC Outstanding Trade Book for Children

    We are very pleased to be the first U.S. publisher to offer Ediths timeless watercolors.

    It is a book of wilderness adventure, it is an education in the ingenuities of wilderness housekeeping, filled with practical details about making do, building and rebuilding, gardening for fun and for food, even advice about getting away from getting-away-from-it-all.

    He just liked to collect frogs. Tyrone’s interest in science led him to Harvard University, and though he struggled at first, he found his calling in the research lab of an amphibian scientist.Meanwhile, scientists discovered that all around the globe, frogs were dying. The decline has many causes, including habitat loss and disease. Tyrone discovered that the most commonly used pesticide in the United States, atrazine, may also play a role. Tyrone tested atrazine on frogs in his lab at Berkeley. He found that the chemical caused some of the male frogs to develop into bizarre half-male, half-female frogs. What was going on? That’s what Tyrone wants to find out.

    Healy, Ph.D., examines how television, video games, and other components of popular culture compromise our children's ability to concentrate and to absorb and analyze information. Drawing on neuropsychological research and an analysis of current educational practices, Healy presents in clear, understandable language: -- How growing brains are physically shaped by experience -- Why television programs -- even supposedly educational shows like Sesame Street -- develop "habits of mind" that place children at a disadvantage in school -- Why increasing numbers of children are diagnosed with attention deficit disorder -- How parents and teachers can make a critical difference by making children good learners from the day they are born

    

    George's parents, who have always been wary of technology, warn him about their new neighbors: Eric is a scientist and his daughter, Annie, seems to be following in his footsteps. But when George befriends them and Cosmos, their super-computer, he finds himself on a wildly fun adventure, while learning about physics, time, and the universe. With Cosmos's help, he can travel to other planets and a black hole. But what would happen if the wrong people got their hands on Cosmos? George, Annie, and Eric aren't about to find out, and what ensues is a funny adventure that clearly explains the mysteries of science. Garry Parsons' energetic illustrations add humor and interest, and his scientific drawings add clarity; there are also eight 4-page full-color inserts of scientific photos.

    Cooney, Laurie Halse Anderson, Bruce Coville, Gennifer Choldenko, and over 100 others, each piece is an informative and inspiring call to kids of all ages to understand what’s happening to the environment, and to take action in saving our world.Helpful tips and facts are interspersed throughout. This book will be a great classroom tool to teach young readers how they can help to make the Earth a greener place.

    Let's say he's somewhere between nine and thirteen years old or so. You'd like to see this kid get creative. You'd like to see him get some exercise. You'd like to see him get out from in front of the television. And you'd love for him to be motivated enough to find some stuff to do on his own.This boy NEEDS The Big Book of Boy Stuff!This thick, durable book includes fascinating chapters on gross stuff, magic, emergencies, fireworks, games, experiments, jokes, activities, insults, pets, flying things, and, of course, duct tape.Boys can learn fun experiments such as how to create a "Monster in a Box" using a shoebox, a flowerpot, and a potato. Next, they can work on building a pneumatic rocket made out of a lip balm tube and air. The sky is truly the limit when it comes to these fun and entertaining projects. No boyhood is complete without a copy!The Big Book of Boy Stuff has all the important information that boys just have to know: How can I make a rocket? What do I do if I get a bean stuck up my nose? How can I make lightning without killing myself? Where can I find new practical jokes? What is the best way to poop outside? How do I tell a girl I like her? Why would I tell a girl I like her? How many mosquitoes does it take to suck all the blood out of a person? What's that smell? . . . and many, many more!The veteran of many water-balloon wars, Bart King has twice won the prized "Arrested Development" award from the New York Society of Amateur Psychologists. He has been a middle-school teacher for the past fifteen years. This is his first book, unless you count that other one he wrote. Bart has interviewed hundreds of the country's wisest guys and smartest alecks for the incredible material in The Big Book of Boy Stuff.Bart invites you to visit this book's website at: www.bartking.net

    “The writing is direct, devastating, with no rhetoric or exploitation. The truth is in what’s said and in what is left out.”—ALA Booklist (starred review)Marion Blumenthal Lazan’s unforgettable and acclaimed memoir recalls the devastating years that shaped her childhood. Following Hitler’s rise to power, the Blumenthal family—father, mother, Marion, and her brother, Albert—were trapped in Nazi Germany. They managed eventually to get to Holland, but soon thereafter it was occupied by the Nazis. For the next six and a half years the Blumenthals were forced to live in refugee, transit, and prison camps, including Westerbork in Holland and Bergen-Belsen in Germany, before finally making it to the United States. Their story is one of horror and hardship, but it is also a story of courage, hope, and the will to survive.Four Perfect Pebbles features forty archival photographs, including several new to this edition, an epilogue, a bibliography, a map, a reading group guide, an index, and a new afterword by the author. First published in 1996, the book was an ALA Notable Book, an ALA Quick Pick for Reluctant Readers, and IRA Young Adults’ Choice, and a Notable Trade Book in the Field of Social Studies, and the recipient of many other honors. “A harrowing and often moving account.”—School Library Journal

    After their parents are lost in an accident, thirteen-year old twins Grace and Marty are whisked away to live with their Uncle Wolfe-an uncle that they didn't even know they had! The intimidating Uncle Wolfe is an anthropologist who has dedicated his life to finding cryptids, mysterious creatures believed to be long extinct.

    It had an illustration that captivated him–a diagram showing Earth’s interior as it would look if you cut into it with a large knife and removed about a quarter of its bulk. The idea of lots of startled cars and people falling off the edge of that sudden cliff (and 4,000 miles is a pretty long way to fall) was what grabbed him in the beginning, but gradually his attention turned to what the picture was trying to teach him: namely that Earth’s interior is made up of several different layers of materials, and at the very centre is a glowing sphere of iron and nickel, as hot as the Sun’s surface, according to the caption. And he very clearly remembers thinking: “How do they know that?”Bill’s storytelling skill makes the “How?” and, just as importantly, the “Who?” of scientific discovery entertaining and accessible for all ages. He covers the wonder and mystery of time and space, the frequently bizarre and often obsessive scientists and the methods they used, and the mind-boggling fact that, somehow, the universe exists and against all odds, life came to be on this wondrous planet we call home.

    When a tornado watch is issued one Tuesday evening in June, twelve-year-old Dan Hatch and his best friend, Arthur, don't think much of it. After all, tornado warnings are a way of life during the summer in Grand Island, Nebraska.But soon enough, the wind begins to howl, and the lights and telephone stop working. Then the emergency siren starts to wail. Dan, his baby brother, and Arthur have only seconds to get to the basement before the monstrous twister is on top of them.Little do they know that even if they do survive the storm, their ordeal will have only just begun...